$(".show_address").hide();
var arrow_state = 0;
$(".contact").click(function () {
	if(!arrow_state){
	    document.getElementById('arrow').src= '/images/arrow_open.gif';
	    arrow_state = 1;
	}else{
	    document.getElementById('arrow').src= '/images/arrow_closed.gif';
	    arrow_state = 0;
	}
    $(".show_address").toggle("slow");
});